Matter and Energy in Food Webs

A consumer at the top of a food chain is sometimes called ________.

• producer

• an apex consumer

• a top consumer

• prey

These organisms break down dead things.

• Consumers

• Producers

• Decomposers

• Rotters

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NGSS.MS-LS2-3

When we eat, our bodies go through this process to make energy from food.

• Photosynthesis

• Cellular respiration

• Transpiration

• Absorption

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NGSS.MS-LS1-7

True or False. In this Food Web Pyramid the consumers on each level only get about 10 percent of energy that the plants have stored.

• True

• False

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

In this Food Web Pyramid what is the proper name for the organisms above the producer level at the bottom.

• herbivores

• consumers

• carnivores 

• omnivores

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NGSS.MS-LS2-3

How do producers obtain energy?

• They conduct photosynthesis.

• They consume plants.

• They consume primary consumers.

• They consume secondary consumers.

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NGSS.MS-LS1-6

An organism at the second trophic level would be considered a ________.

• Top carnivore

• Producer

• Herbivore

• Carnivore

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NGSS.MS-LS2-3

Which organism do the owl and the weasel compete for in the food web?

• Hawk

• Spider

• Grasshopper

• Shrew

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

What might happen if you remove a primary consumer from the ecosystem?

• There would be more food for secondary consumers.

• The number of primary consumers would increase.

• The number of plants would increase.

• The number of secondary consumers would increase.

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.

• There would be a decrease in the grass/flowers population.

• There would be a decrease in the mice population.

• There would be an increase in the grass/flowers population.

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4